Adding Adomd parameters programmatically C#

Question

Afternoon all.

I'm building a web app and I'm attempting to pull through some data from an SSAS cube.

I have the following MDX I would like to replicate in c# but with adding a few parameters i.e. two parameteres, one for company 123 and another for location 1:

@"SELECT NON EMPTY([Dim Unit].[All Units].[Category Group Name]) ON COLUMNS
                    FROM [Info]
                    WHERE ([Dim Company].[All Companies].&[123], 
                    [Dim Location].[All Locations].&[123]&[1])"; 

Now, I can get this up and running with one parameter:

 AdomdCommand cmdPDC = conPDC.CreateCommand();
        cmdPDC.CommandText = "SELECT [Dim Unit].[All Units].[Category Group Name].Members ON 0 FROM [Info] WHERE (StrToMember(@P1)";

        string companyid = "123";

        string sP1 = "[Dim Company].&" + company;

    cmdPDC.Parameters.Add(new AdomdParameter("P1", sP1));

But how do I then implement a second parameter, for example, if I wanted to stick a parameter in for location? I was thinking along the lines ofbelow but I can't get the little sod to work:

AdomdCommand cmdPDC = conPDC.CreateCommand();
        cmdPDC.CommandText = "SELECT [Dim Unit].[All Units].[Category Group Name].Members ON 0 FROM [Info] WHERE (StrToMember(@P1)," + "(StrToMember(@P2))";

        string companyid = "123";
        string locationid = "1";

        string sP1 = "[Dim Company].&" + company;
        string sP2 = "[Dim Location].&" + company + "&" + location;

        cmdPDC.Parameters.Add(new AdomdParameter("P1", sP1));
        cmdPDC.Parameters.Add(new AdomdParameter("P2", sP2));

Any help or advice gratefully received.